Pressed-steel brake-beam and shoe-head for railway-cars



2 Sheets--Sheet' 1.

(No Model.)

0. T. SOHOEN. PRESSED STEEL BRAKE BEAM AND $1105 HEAD FOR RAILWAY CARS.

Patented Dec.

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2 SheetsSheet 2.

{No Model.)

0. T. SCHOEN' PRBSSED STEEL BRAKE BEAM AND SHOE HEAD FOR RAILWAY CARS.

Patented De0.8,1891.

[Will 70$ fwd/WM .zlliorne v WITNESSES UNITED STATES ATENT CHARLES T.SCI'IOEN, OF ALLEGHENY, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 464,781, dated December8, 1891.

Application filed June 30, 1891. Serial No. 398,029. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES T. SOHOEN, a citizen of the United States,residing at -Allegheny, in the county of Allegheny and State ofPennsylvania, have invented a certain new and useful Improvement inPressed-Steel Brake-Beams and Shoe-Heads for Railway- Cars, of which thefollowing is a full, clear, and exact description.

This invention relates to a metallic brakebeam of the character setforth in the patent of Schoen and Newton, No. 450,7 60, dated April 21,1891, in which the compression and tensile bars are shaped and united toform a diamond-shaped beam.

The present invention consists in certain modifications of theconstruction of the compression and tensile bars or members and of thestrut or king-post and of the shoehead. The invention also consists of aguide to engage the wheels in turning curves to prevent tllilebrake-beam from being displaced lateray.

In the accompanying drawings, in the several figures of which like partsare similarly designated, Figure 1 is a plan view of part of adiamond-formed brake-beam embodying my invention. Fig. 2 is anelevation. Fig. 3 is an elevation of the strut or king-post, showingalso the cross-sections of the compression and tensile members in theplane of the strut. Fig. 4 is an end elevation showing my pressedsteelshoe-head adapted for the Christy shoe. Fig. 5 is a section taken in theplane of line 00 m of Fig. 1. Fig. 6 is asection taken through themeeting ends of the compression and tensile members. Fig. 7 is a sideelevation, and Fig. 8 an end elevation, of my pressed-steel shoe-headadapted to the Collins shoe. Figs. 9, 10, and 11 show in side, top, andend elevation, respectively, my guide applied to the National hollowbrake-beam.

The compression-bar a is struck up from steel plate, and is providedwith a central longitudinal rib or corrugation a, which in; creases inheight from midway between its ends toward its ends, thus making the barwider at its center than at its ends. The increase in height of the ribtoward its ends is made to render the bar more eiiicient in re-.

sistiug the strain of the shoes, and this feature, in connection withthe decrease toward the center, effects so equable a distribution of themetal as to result in an increase of about twenty per centum in thecapacity of the beam. The increase of width of the bar at the centeradds to its lateral stiffness. The

tensile bar I) has its stiffening-ribs cstartingfrom nothing midwaybetween the ends of the bar and rising gradually toward the ends untilthey coincide substantially in height and shape with the inside of therib of the compression-loar, as seen in Figsl, 2, and 6. In order tostiffen the tensile bar where the ribs have little or no projection,lflange the sides d d, as seen in Figs. 1 and 3. The meeting ends of thecompression and tensile bars are united by overlapping the ends of thetensile bar upon the compression-bar, as seen in Fig. 1, or vice versa,although they may be otherwise united. Thestrutorking-posteisconstructed of a piece of wrought metal doubled uponitself to form the loop f'to receive the brakerod connection, and havingits ends welded and drawn out to support the compressionbar and providedwith two tongues g g, which are passed through a slot h in thecompression-bar and bent over in opposite directions upon thecompression-bar to secure the two together. The butt-end of the strutrests in the trough of the tensile member between its flanges d d andribs 0, and may be secured by an eye 2', which may be further utilizedfor suspending the brake-beam. A strut constructed in this manneriseconomically made, readily applied, and very durable.

The shoes most commonly used are known as the Christy and the Collins,and I have adapted the pressed-steel shoe-head to these forms of shoe.For the Christy shoe j, which has the shoulders 7,; k and perforated lugZ, I use a shoe-head m of the general configuration shown in Figs. 1, 2,and 4, having the arms m to engage the shoulders k and provided with theclip n to straddle the lug Z, a key or wedge 0 being passedlongitudinally through the shoe-head, clip, and lug to unite them. Theclip also receives the hanger-link p through slots m in the sides of theshoehead. The shoe-head is provided with the hollow projection in, intowhich is fitted the clip 0?, and which projection fits into the hollowof the ribbed compression and tensile members, and a bolt q is used tounite them all. The shoe-head has a cross-section much resembling aninverted U to insure suiticient rigidity and strength. The shoe-head rfor the Collins shoe, as shown in Figs. 7 and 8, also is struck up orpressed from steel plate, and is constructed with the arms 9', which aremade with dovetail sockets, as indicated in dotted lines in Fig. 8, toreceive a correspondingly-shaped tongue 5 on the shoe .5. The shoe isprovided with a shoulder 5 against which one arm 0' of the shoe-headabuts, and at the other end of the shoe there is a transverse slot 5 toreceive a key or pin .9 to lock the shoe and shoe-head together. One ofthe arms 7' is made with a bend 7' to receive the hanger-linkp. Theshoe-head r is constructed similarly to the shoe-head m, with facilitiesfor securing it to the brake-beam, as clearly indicated by correspondingletters in Figs. 7 and 8,and is curved in crosssection to insurerigidity and strength.

The guide 25 is designed to prevent the lateral displacement of thosebrake-beams which are hung on the outside of the wheel when going aroundcurves. In this instance it consists of a strip of metal bent to conformto the diverging compression and tensile bars and lapped around themnear their angle of meeting at each end, as shown in Figs. 1, 2, and 5.The eyebolt u is passed transversely through the guide and rests in theangle formed by the bars, and thus not only unites the parts, but alsoprevents displacement of the guide toward the end of the beam,displacement in the other direction being prevented by the divergence ofthe bars. The eyebolt also serves as the safety hanger-lin k. This guideis designed to strike against the flange of the wheel in going aroundcurves.

In Figs. 9,10, and 11 I have shown myguide as applied to the Nationalhollow brakebeam. It is lapped about its compression member and securedby a bolt. I have shown in these figures the guide corrugated or ribbedlongitudinally in order to increase its strength, and obviously thissame feature may be applied to the guide shown in Figs. 1, 2, and 5.

In both forms of guide the projecting effective finger and the clasp forengaging the beam are in one piece and struck up or pressed from wroughtmetal, preferably steel plate.

What I claim is- 1. A compression member for brake-beams, constructed ofwrought metal, having a longitudinal rib or corrugation increasing inheight from about midway of the member toward its ends, and therebyleaving the member widest at its central portion, substantially asdescribed.

2. A tensile member [or brake-beams, constructed of wrought metal,preferably steel plate, and having longitudinal strengtheningribs risingtoward the ends from nothing at midway between the ends, substantiallyas described. I

A tensile member for brake-beams, constructed of wrought metal,preferably steel plate, and having longitudinal strengtheningribs risingtoward the ends from nothing at midway between the ends and constructedwith side flanges at the central portion, substantially as described.

4. The combination, with the compression and tensile members, of a strutconstructed of a loop of wrought metal having its ends welded and drawnout and inserted through and lapped over the compression member,substantially as described.

5. As an improved article of manufacture, a railway-brake-shoe headhaving arms to engage the shoe, and a hollow projection to fit thebrake-beam and receive the fastening-bolt and curved in cross-sectionand struck up or pressed from plate metal, preferably steel,substantially as described.

(3. A pressed-steel shoe-head having arms to engage the shoe, a hollowprojection to fit the brake-beam, and slots to receive the hanger-link,combined with a clip fitted in said projection, and a bolt passedthrough the clip and projection by which the shoehead is secured to thebrake-beam and akey by which the shoe is connected with the shoehead,substantially as described.

7. A guide for preventing the lateral displacementof brakebeams inrounding curves, consisting of a piece of metal lapped about thebrake-beam and united thereto by a transverse bolt and having aprojecting finger, the parts of the guide being integral, substantiallyas described.

8. A guide for preventing the lateral displacement of brake-beams inrounding curves, consisting of a piece of metal lapped about thebrake-beam and partaking, essentially,of the divergence of thecompression and tensile members to prevent movement in one direction,and having a fastening-bolt passed through it and the beam at or nearthe juncture of the compression and tensile members to prevent escape inthat direction, substantially as described.

In testimony whereof I have hereunto set my hand this 24th day of June,A. D. 1891.

CHARLES T. SCITOEN.

\Vitnesses:

WM. II. SonoEN, M. IIAWLEY MCLANAHAN.

